Abstract
The interaction between M (M = Ca, Yb) atom and C74 (D 3h) has been investigated by all electron relativistic density function theory. With the aid of the representative patch of C74 (D 3h), we studied the interaction between C74 (D 3h) and M (M = Ca, Yb) atom and obtained the interaction potential. Optimized structures show that there are three equivalent stable isomers and there is one transition state between every two stable isomers. According to the minimum energy pathway, the possible movement trajectory of M (M = Ca, Yb) atom in the C74 (D 3h) cage is explored. The calculated energy barrier for Yb atoms moving from the stable isomer to the transition state is 10.4 kcal mol−1 and the energy barrier for Ca atoms is 6.1 kcal mol−1. The calculated NMR spectra of M@C74 (M = Ca, Yb) are in good agreement with the experimental data. There are nine lines in the spectra: one 1/6 intensity signal, four half intensity signals and four full intensity signals.
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This work was supported by the National Natural Science Foundation of China (Grant Nos. 21036006 and 21137001).
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Zheng, W., Ren, S., Tian, D. et al. The dynamic motion of a M (M = Ca, Yb) atom inside the C74 (D 3h) cage: a relativistic DFT study. J Mol Model 19, 4521–4527 (2013). https://doi.org/10.1007/s00894-013-1958-x
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DOI: https://doi.org/10.1007/s00894-013-1958-x